Capacities vs Pieces for Developers: Which is Better in 2026?

• Objects
• Backlinks
• Related Content
• Daily notes

• Living timeline
• Contextual search
• Instant recaps
• Automatic memory capture
• Pieces MCP Server
• +1 more

Capacities is a note-taking and personal knowledge management app that structures everything you capture—people, books, projects, ideas—as connected objects with properties rather than flat pages in folders. Objects link to each other to form a knowledge graph, with backlinks and automatically surfaced related content revealing connections between notes. It also includes an AI assistant that writes, summarizes, and surfaces links between objects, and centers daily notes as a low-friction inbox for capturing thoughts.

Pieces is the AI-powered developer productivity OS that runs entirely on your device. Save code snippets with AI-enriched context, chat with a copilot that remembers your entire workflow, and recall anything you've worked on — all offline, all private.